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Angeliki Dimitriou

3 accepted papers

2025

Bias Beware: The Impact of Cognitive Biases on LLM-Driven Product Recommendations

EMNLP 2025

The advent of Large Language Models (LLMs) has revolutionized product recommenders, yet their susceptibility to adversarial manipulation poses critical challenges, particularly in real-world commercial applications. Our approach is the first one to tap into human psychological principles, seamlessly

2025

SCENIR: Visual Semantic Clarity through Unsupervised Scene Graph Retrieval

ICML 2025poster

Despite the dominance of convolutional and transformer-based architectures in image-to-image retrieval, these models are prone to biases arising from low-level visual features, such as color. Recognizing the lack of semantic understanding as a key limitation, we propose a novel scene graph-based ret…

2024

Structure Your Data: Towards Semantic Graph Counterfactuals

ICML 2024poster

Counterfactual explanations (CEs) based on concepts are explanations that consider alternative scenarios to understand which high-level semantic features contributed to particular model predictions. In this work, we propose CEs based on the semantic graphs accompanying input data to achieve more des…